CN101784782B - System for controlling at least one actuator of the cowlings of a turbojet engine thrust inverter - Google Patents

System for controlling at least one actuator of the cowlings of a turbojet engine thrust inverter Download PDF

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Publication number
CN101784782B
CN101784782B CN200880102552.6A CN200880102552A CN101784782B CN 101784782 B CN101784782 B CN 101784782B CN 200880102552 A CN200880102552 A CN 200880102552A CN 101784782 B CN101784782 B CN 101784782B
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China
Prior art keywords
motor
temperature
actuator
turbojet engine
cowling
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CN200880102552.6A
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Chinese (zh)
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CN101784782A (en
Inventor
哈金·马里翁
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Safran Nacelles SAS
Safran Nacelles Ltd
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Hurel Hispano SA
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/54—Nozzles having means for reversing jet thrust
    • F02K1/76—Control or regulation of thrust reversers
    • F02K1/763—Control or regulation of thrust reversers with actuating systems or actuating devices; Arrangement of actuators for thrust reversers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/54—Nozzles having means for reversing jet thrust
    • F02K1/64—Reversing fan flow
    • F02K1/70—Reversing fan flow using thrust reverser flaps or doors mounted on the fan housing
    • F02K1/72—Reversing fan flow using thrust reverser flaps or doors mounted on the fan housing the aft end of the fan housing being movable to uncover openings in the fan housing for the reversed flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2270/00—Control
    • F05D2270/30—Control parameters, e.g. input parameters
    • F05D2270/303—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2270/00—Control
    • F05D2270/60—Control system actuates means
    • F05D2270/62—Electrical actuators

Abstract

The control system of the invention includes at least one actuator (6) for a cowling (2), driven by at least one electric motor (7), and a control means (9) for the electric motor (7). The electric motor control means (9) includes a means for determining and/or estimating the outside temperature of the turbojet engine, the electric motor control means being adapted for adjusting the driving torque supplied by the electric motor on the basis of said outer temperature.

Description

Control the system of at least one actuator of the trhrust-reversal device cowling of a turbojet engine
Technical field
The present invention relates to the system of at least one actuator of the trhrust-reversal device cowling of a kind of control one turbojet engine.
Background technique
The effect of one trhrust-reversal device is through at least a portion thrust deflexion the place ahead of turbojet engine generation being improved the ability of aircraft brakes when an aircraft lands.In this stage, said reverser stops outlet pipe and with discharge air flow divert engine compartment the place ahead of motor, thereby produces the braking force that a deboost increases aircraft wheel.
Realize that this air-flow redirects employed device difference is arranged according to the type of reverser.Yet with regard to all situations, the structure of a reverser comprises movable cowling; They can move between an expanded position and a retracted position, and at expanded position, they can be opened one and supply the used passage of diverted gas flow in engine compartment; And, then can close this passage at retracted position.These movable cowlings also can provide one to turn to function or only be to start other the steering gear.
For example, in grid type trhrust-reversal device, the cowling of a plurality of activities slides along the track so that they when in open stage, shrinking back, can let the grid that is located at the steering blade in the engine compartment thickness direction expose.One push and pull system is connected to this movable cowling at the locking lock that in the exhaust passage, launches and block the outlet in the DC mode.On the other hand in the gate-type reverser, each movable cowling can pivot so that block airflow and it is turned to, thereby in this turns to again, plays positive role.
Generally speaking, these movable cowlings need to receive a pipeline to carry the hydraulic pressure of a pressure fluid or pneumatically actuated cylinder to activate.According to usage, this pressure fluid be through or from the turbojet engine air tapped, or extract and obtain from the hydraulic pipe line of aircraft.This type systematic needs quite a large amount of maintenances, because the slightest leakage possibly be difficult to detect and have the risk of damaging reverser and other parts of engine compartment in hydraulic pressure or the pneumatic pipeline.In addition, owing to only have little space to use in the reverser leading portion, the just difficult especially and apparent heaviness of pipeline that installation and maintenance is such.
In order to overcome the various shortcomings of accompany aerodynamic force and hydraulic system, trhrust-reversal device MANUFACTURER has sought to replace them and has equipped gentlier for their reverser as much as possible and more reliable electromechanical actuator.Such trhrust-reversal device is described in EP 0 843 089 documents.
Yet if want to make full use of the gain of characteristic on quality and volume that electromechanical actuator provides, they also have several defectives to need to solve.
Especially, under extreme temperature conditions, in other words about for example-40 ℃ or about 50 ℃ temperature, the torque of the driving machine electric actuator that motor transmitted possibly be not enough to drive the latter, thereby possibly be not enough to let movable cowling section be moved.
In fact, observedly be that under extreme temperature conditions, the motor that electromechanical actuator need drive them transmits the torque that is greater that under normal temperature conditions, transmitted so that they can be driven.
Therefore, under extreme temperature conditions, one be equipped with this reverser an aircraft lands during, the running of trhrust-reversal device possibly have problem.
A solution that overcomes this shortcoming is; Motor is assembled into is suitable for transmitting a sufficiently high single torque, thereby and the cowling of reverser can both be moved under normal temperature conditions with under the extreme temperature conditions so that electromechanical actuator can be driven.
Yet motor constantly transmits the quick wearing and tearing that a high torque (HT) will cause motor and electromechanical actuator.
In addition, the use of high electric current is influential to the reliability/life-span of control system power electronic equipment.
The quick wearing and tearing of motor and electromechanical actuator are more harmful, though because under few situation the essential high torque (HT) that transmits, control system all is under normal temperature conditions, to turn round and need not transmit a such torque in the time of most of.
The invention reside in solve these defectives and; Be more especially; A kind of control system is provided; It is used to control at least one actuator of the cowling of a turbojet engine trhrust-reversal device, and makes the reverser cowling under extreme temperature conditions, can be moved, and avoids taking place the quick wearing and tearing of actuator simultaneously.
Summary of the invention
For this purpose, the present invention relates to the system of at least one actuator of a trhrust-reversal device cowling of a kind of control one turbojet engine, comprise:
-receive at least one actuator of an at least one electric motor driven cowling,
The control gear of-said motor,
Be characterised in that
The control gear of said motor comprises the device that is used for judging and/or assessing the turbojet engine external temperature, and the driving torque that the control gear of said motor is configured to said motor is transmitted is adjusted as a function of this outside temperature,
And be characterised in that
Said judgement and/or apparatus for evaluating comprise the temperature measuring equipment that is arranged for measurement temperature on said control gear, and said judgement and/or apparatus for evaluating are configured to the temperature that turbojet engine is outside and judge as a function of measured temperature.
The driving torque that said motor is transmitted on the one hand, can apply a low driving torque as the practice that function is adjusted of external temperature under normal temperature conditions, on the other hand, can only under extreme temperature conditions, apply a high driving torque.Thereby this arrangement makes the quick wearing and tearing of actuator to be restricted and also make the running of trhrust-reversal device under extreme temperature conditions obtain to guarantee.
In addition; Said judgement and/or apparatus for evaluating comprise the fact that is arranged for the temperature measuring equipment of measurement temperature on said control gear; Make the judgement of external temperature can use the assembly that is positioned in the control gear that is arranged on turbojet engine or the engine compartment to carry out, and need not be installed in advance the outside distance sensor of unit and with being connected of these distance sensors.
Advantageously, the driving torque that motor is transmitted by control gear comprises one group of stage corresponding to the different temperatures scope as the indicatrix of the adjustment that a function of external temperature is done.
According to one embodiment of the invention, the adjusted value of driving torque with regard to one activate the stage the duration with regard to, when that activates the beginning in stage, determined.
These arrangements make can realize the servocontrol of motor simply during the open stage and do not consider to activate the stage duration to the correction of driving torque adjustment, variation of temperature becomes inessential duration of the stage of actuating.
In any case the present invention will be by means of following explanation, and,, obtain clearly to understand with an embodiment of non-limitative example, this system with reference to appended schematic representation.
Description of drawings
Fig. 1 is a part of general perspective that comprises an engine compartment of a grid type trhrust-reversal device.
Fig. 2 is the movable cowling and the slightly expression without exception of their actuating system.
Fig. 3 is the slightly expression without exception of control system of the actuator of movable cowling.
Fig. 4 shows and represents under two different temperature values and the given motor speed that driving torque is as two change curves of a function of cowling stroke.
Embodiment
Before describing one embodiment of the invention in detail, importantly to spell out, described system is not limited to one type trhrust-reversal device.Though it is bright that the present invention has a talk about with a grid type reverser, the also available different designs of the present invention, particularly the reverser of door type is implemented.
Fig. 1 shows a part summary schematic views of an engine compartment that comprises a trhrust-reversal device 1.Turbojet engine is not described.Trhrust-reversal device 1 has the structure of the cowling 2 of an activity that comprises two semicircles, can slide and expose with the grid 3 that does not make the steering blade between a channel section of the cowling 2 of activity and the air stream that turned to.Blocking-up lock 5 be positioned at said structure in case can pivot and from one do not hinder the passage of air stream 4 position transition become one block this passage the position.For the unlatching that makes movable cowling 2 matches with a blocking position of said blocking-up lock 5, blocking-up lock 5 mechanically is connected to movable cowling 2 and is connected to fixing structure through a push and pull system (not describing) through hinge.
Movable cowling 2 is handled along the moving by a group of activated cylinders 6a, 6b being installed on the preceding frame of outside of said structure; Be installed with a motor 7 draws in the frame before said, be connected to activated cylinders 6a, 6b respectively to activate their flexible drive shaft 8a, 8b.
In Fig. 2, describe the actuating system of movable cowling 2 separately.Each movable cowling 2 can be moved under the action of three activated cylinders 6a, 6b; Three activated cylinders comprise a center activated cylinders 6a and two additional activated cylinders 6b, are activated by a single motor 7 that is connected to the control gear 9 that comprises a microcontroller.The electric power that motor 7 transmits is dispensed into center activated cylinders 6a through two flexible drive shaft 8a earlier, then is dispensed into additional activated cylinders 6b through flexible drive shaft 8b.
Variant according to not representing only uses two activated cylinders in the up and down that single motor activated that are connected to a control interface for each cowling.The power that motor transmitted is transmitted to two activated cylinders in said up and down through two flexible drive shaft 8a.
Fig. 3 roughly shows a control system that activates two cowlings, to each cowling with two actuators in up and down.
As shown in Figure 3, comprise a microcontroller 9 according to a control system of the actuator of a trhrust-reversal device of the present invention.
This microcontroller 9 is connected to flight control 12 through communicator 10.
Said control system comprises that also one is connected to the power stage 13 of the supply network 14 of aircraft.
Microcontroller 9 makes the foregoing motor 7 of control and activated cylinders or actuator 6 possibility that becomes.Said motor comprises that one also receives the break 15 of microcontroller 9 controls.
Microcontroller 9 comprises the device that is used to assess the turbojet engine external temperature.Said apparatus for evaluating comprise one be arranged in microcontroller 9 measuring temperature sensor for measuring temperature 16.
Said assessment counter device also comprises and is used for device 17 that the turbojet engine external temperature is performed calculations when a function that be made in the temperature that microcontroller 9 measures.
The outside temperature of turbojet engine is to assess by means of the calculation chart that is stored in the early time in the computing device 17.
Therefore, apparatus for evaluating is arranged for the turbojet engine external temperature is assessed when a function that be made in the temperature that microcontroller 9 measures.
Microcontroller 9 is arranged for the driving torque that motor 7 transmits is adjusted as a function of this external temperature of assessing out.
A function of the external temperature that the driving torque that motor 7 is transmitted is come out as assessment comprises one group of stage corresponding to the different temperatures scope by the indicatrix of the adjustment that microcontroller 9 is carried out.
The adjusted value that it should be noted that said driving torque is determined when that actuating stage begins.
Fig. 4 shows and represents under two different temperature values, and driving torque is as two change curves of a function of cowling stroke, one corresponding to an extreme temperature another and is in a given engine speed corresponding to room temperature.Observe, the adaptation situation of said driving torque occurs in the curved portion between 200 and the 600mm stroke of cowling.
Certainly, the present invention is not limited in the single embodiment of the control system that preceding text describe with the example mode, and comprises all changes example on the contrary.

Claims (3)

1. the system of at least one actuator (6) of the trhrust-reversal device cowling (2) of control one turbojet engine comprises:
-receive at least one actuator (6) of at least one cowling (2) that at least one motor (7) drives,
The control gear (9) of-said motor (7),
Be characterised in that
The control gear of said motor (9) comprises the device that is used for judging and/or assessing said turbojet engine external temperature; The driving torque that the control gear of said motor is configured to said motor is transmitted is adjusted as a function of this outside temperature
And be
Said judgement and/or apparatus for evaluating comprise the temperature measuring equipment (16) that is arranged for measurement temperature on said control gear, and said judgement and/or apparatus for evaluating are configured to the temperature that said turbojet engine is outside and judge as a function of measured temperature.
2. system according to claim 1, the driving torque that wherein said motor (7) is transmitted by said control gear comprises one group of stage corresponding to the different temperatures scope as the indicatrix of the adjustment that a function of external temperature is done.
3. according to each described system in the claim 1 and 2, the adjusted value of wherein said driving torque with regard to the endurance that one activates the stage, is determined when this actuating stage begins.
CN200880102552.6A 2007-08-20 2008-07-07 System for controlling at least one actuator of the cowlings of a turbojet engine thrust inverter Active CN101784782B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0705926A FR2920203A1 (en) 2007-08-20 2007-08-20 SYSTEM FOR CONTROLLING AT LEAST ONE SHUTTER ACTUATOR OF A PUSH INVERTER FOR A TURBOJET ENGINE
FR0705926 2007-08-20
PCT/FR2008/000978 WO2009034246A2 (en) 2007-08-20 2008-07-07 System for controlling at least one actuator for the cowlings of a turbojet engine thrust reverser

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CN101784782A CN101784782A (en) 2010-07-21
CN101784782B true CN101784782B (en) 2012-07-18

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US (1) US8650855B2 (en)
EP (1) EP2179167B1 (en)
CN (1) CN101784782B (en)
AT (1) ATE498770T1 (en)
BR (1) BRPI0813594A2 (en)
CA (1) CA2694923C (en)
DE (1) DE602008005031D1 (en)
ES (1) ES2360977T3 (en)
FR (1) FR2920203A1 (en)
RU (1) RU2466291C2 (en)
WO (1) WO2009034246A2 (en)

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Publication number Priority date Publication date Assignee Title
FR2944509B1 (en) * 2009-04-16 2012-10-19 Aircelle Sa ACTUATION SYSTEM FOR TURBOREACTOR NACELLE
FR2956163B1 (en) * 2010-02-10 2012-02-17 Aircelle Sa CONTROL SYSTEM OF AN AIRCRAFT
US10794327B2 (en) * 2018-03-21 2020-10-06 Honeywell International Inc. Systems and methods for thrust reverser with temperature and fluid management

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CN1500693A (en) * 2002-10-25 2004-06-02 �ŵ����-�������˹�� Electromechanical thrust reverser for a turboreactor used to control door movement
EP1280029A3 (en) * 2001-07-23 2004-10-06 Goodrich Control Systems Limited Motor control system
FR2872223A1 (en) * 2004-06-29 2005-12-30 Hurel Hispano Sa Thrust reverser opening or closing controlling method for turbojet, involves analyzing parameter representing jet pressure of turbojet, and delivering torque lower or equal to threshold limit value, during execution of operating sequence

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Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
EP1280029A3 (en) * 2001-07-23 2004-10-06 Goodrich Control Systems Limited Motor control system
CN1500693A (en) * 2002-10-25 2004-06-02 �ŵ����-�������˹�� Electromechanical thrust reverser for a turboreactor used to control door movement
FR2872223A1 (en) * 2004-06-29 2005-12-30 Hurel Hispano Sa Thrust reverser opening or closing controlling method for turbojet, involves analyzing parameter representing jet pressure of turbojet, and delivering torque lower or equal to threshold limit value, during execution of operating sequence

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Publication number Publication date
US8650855B2 (en) 2014-02-18
BRPI0813594A2 (en) 2014-12-30
ES2360977T3 (en) 2011-06-10
DE602008005031D1 (en) 2011-03-31
EP2179167A2 (en) 2010-04-28
CA2694923C (en) 2015-02-17
RU2010109793A (en) 2011-09-27
WO2009034246A8 (en) 2009-07-23
RU2466291C2 (en) 2012-11-10
ATE498770T1 (en) 2011-03-15
CA2694923A1 (en) 2009-03-19
WO2009034246A2 (en) 2009-03-19
CN101784782A (en) 2010-07-21
FR2920203A1 (en) 2009-02-27
US20110265446A1 (en) 2011-11-03
EP2179167B1 (en) 2011-02-16
WO2009034246A3 (en) 2009-05-07

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